Rotary engine.



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V. PERAZIO.

ROTARY ENGINE.

APPLICATION FILED M1141. 1908. BBNBWED JULY 19, 1913. 1 1 30,83%,

Patented Mar. 9, 1915.

'motive Huid, and the central aperture l VALENTINE rERAzIo, or PHILADELPHIA, PENNSYLVANIA.

ROTARY ENGINE.

Specification of Letters Patent.

Patented Mar. 9, 1915.

Application led January 11, 1908, Serial No. 410,438. Renewed .Tilly 19, 1913. Serial No. 780,028.

T0 all whom t may concern Be it known that I, VALENTINE PERAZIO, Y

standing of the nature of the invention, and

the manner in which the same is to be performed, will be had, it is thought, by immediate reference to the drawing hereto annexed, which forms an integrant part of this specication, and in which- Figure 1 is a sectional elevation, taken from a middle plane of either Fig. 2 or Fig. 4, looking to the right in each instance. Fig. 2 is a vertical cross-section on the line .Ar-A, Fig. 1, looking to the left. Fig. 3 is a detached View of one half of the rotary member, looking at the inner face thereof, the same being represented on a reduced scale. Fig. 4: is a top view. Fig. 5 is a fragmentary view, including a transverse .section on the line B-B, Fig. 1, looking to the right. Fig. 6 is a diagrammatic view, illustrating in perspective a system of feed and exhaust pipes specially fitted for the operation of this improved rotary and reversible engine.

The mounting for the rotary member comprises two stationary rings 1 and 2, which are held concentrically one within the other in any suitable way, for instance, by means of connecting pieces such as 3 and 4. The

intervening spaces 5 and 6 between the two rings are intended to form passages for the through the inner ring is designedto receive a portion of the rotary member, as hereinafter described. The outer ring is made to stand on edge and therefore is extended laterally in its bottom part, on both sides, to form a base 8, by means of which it can be bolted and secured in a firm position whereever the engine is to be set up. The said mounting further` includes a pair of supports 9, located, one on each side of it and topped with bearings 10 in line with the aperture 7, each bearing being adapted yto receive and sustainone end or4 other convenient portion of the shaft 1l of the rotary member, which shaft passes through the center of said aperture, as seen in Figs. 1 and 2.

The aforesaid rotary member is composed of two parts 12 and 13, brought together from the opposite sides of the ring 1 and secured to each other by screws 111, or equivalent `fastening means. Centrally, the part 12 iits the inside of the ring 1 and is connectedV by spokes 15 with a. long hub 16, keyed to the above-mentionedshaft 11 and reachingfrom one support 9 to the other between the bearings 10. Beyond the center, the said part 12 extends from the rin 1 to the ring 2, resting squarely against the vfull width of the former, and in a like manges ner upon inwardly-projecting. segmental Y ribs l of the latter. yThe part 13 bears against these same ribs on the opposite side also upon the corresponding side of the inner ring and the within-lying portion of the part 12, to which it is screwed and by which it is carried. Both parts 12 and 13 are suitably grooved and wrapped with packing in their perimeters, as at 18, 19, and

20, where they respectively contact the rings 1 and 2, in order that steam-tight joints may be effected at these several points. As will be observed, the vacant spaces 5 and 6 bccome inclosed upon theinsertion of the twopart rotary member in its said mounting, thereby forming lcpiadrilateral tubular channels around said rotary member, like the one seen at 6 in the lower part of Fig. 2. rIhese four-side channels are utilized for applying the steam (or other fluid force) to the engine. Each of said channels is provided with two ports, one at each terminal, so to say. F iguring on two channels, as in the form of the invention disclosed herein, there .will then be foury such ports, 21, 22, 23, 24, and the same will of course afford `either ingress or egress to the motive agent according to the directionin which itis caused to flow. The several ports communicate with pipes 25, 26, 27, 28, connected with opposite sides of the ring 2, by couplings 29, and adapted to be used interchangeably for feed or exhaust, as will be presently explained.

Impellers y30, carried by the part 13 and projecting inwardly therefrom, into and across the spaces 5, 6, as far as the inner wall of the part 12, furnish the means of revolving the rotary member, by receiving and imparting to it the impulses of the motive fluid directed into the above-deined channels. Tbese impellers are lodged in pockets 31 ofthe part 13, and consist eachof a small metal piece made cruoiform in cross-section or with wings fitted in grooves 32, formed Y inside each one of said pockets. Otherwise the said impellers are'loose in their respective pockets, out of which they can slide so a'sfto reach between and across the inner ring 1 and the ribs 17 of the outer ring 2, though sufficiently retained by their wings in the grooves 31 to enable them to be maintained rigidly in position to meet the motive fluid and effectively transmit its impact to the rotary member. They are normallyV pressed out of the pockets, yto the requisite extent, bymeans of spiral springs 33. Each spring, when distended, fills its own pocket, thesame being made to bear upon the bottom of the pocket and under the impeller therein, which is cut centrally to receive it, as between prongs 84. As shown in Fig 1 of the drawing, three impellers are employed, preferably, and one or two always will be found in position to receive the impulse of the motive iiuid irrespective of the position of the rotary member, there being no dead centers. It is understood that the course for each impeller, as it moves through and along f eitherchannel, ends with the space 5 or 6, at the cross-.piece 8 or 4, terminating the same, each one of the cross-pieces constituting an abutment intermediate of the rings 1 and 2. The impeller must withdraw or disappear in order to get past these crosspieces, and therefore all that part thereof `which projects into the spaces 5 and 6 is made outwardly tapering, as ,atv 35, and the edges of the cross-pieces are correspondingly beveled, as at 36, so that upon coming into contact with either of these edges the impeller will be forced back on its spring and caused to retreat completely into its pocket,

to re-appear in the next channel after the cross-piece that blocked its way haspbeen cleared. e

A special arrangement of the piping for Y the conveyance of the steam or other motive fluid is provided' for, iny order that the two channels (of which the spaces 5 and 6 form part) may be supplied from a single source, and that the fluid may be fed or exhausted at either end of each channel, thereby insuring simplicity in the operation as well. as the reversibility of the engine. The pipes 25, 26, 27, 28, previously referred to, arey connected, by means of cross-pipes 37, 38, and 39, and to the latter is coupled the supply-pipe 40, so kthat the four pipes rst named can severally be used as feed-pipes, Vif desired, each of them receiving its supply from the one pipe 40 and its connections. 'These four pipes are further provided with branches 41, 42, 43, 44, open to the atmos phere and consequently adapted to turn them into exhaust-pipes, whenever it is desirable to use them as such. The passages through the several pipes and branches, to andvfrom they channels (spaces 5and 6), are controlled by two rotary valves 45 and 46,

for instance, the upper channel through the pipe l25, will exhaust through the pipe 26 and its branch 42, as indicated by the full arrows 47 in the diagram, Fig. 6; whereas the fluid that enters the :lower channel through the pipe 27 exhausts through the Vpipe V28 and its branch 44, as pointed'out byV the dotted arrows 48 in said diagram. Inversely, when the course ofthe motive fluid through said channels is to be reversed, the fluid will be fedV to the upper channel through the pipe 26 and exhausted through the pipe 25 and its branch 41, while as regards the lower channel, the fluid will be caused to enter it through the'pipe 28 and leave it through the pipe 27 and its branch 43. Twovalves only, like 45 and 46, need be employed, if-the various pipes can be brought sufficiently close to one another and they are properly combined. It is with this end in view that, as the drawing shows, the branch-pipes are brought into parallelism with the (four pipes to which they respectively belong, and the latter are paired, namely, the pipe 25 with the pipe 28, and

be stated, are disposed alternately .atright y angles one with the other, as the lparellel dotted lines 51V and dotted circles 52 indicate in Figs. 2 and 6, so that the pipes and branches thereof will be alternately opened and closed, or the reverse, as will be required in the operation of the engine.

Having .thus described my said invention, what I claim, and desire to secure by Letters Patent of thel United States, is:

1. An engine comprising two stationary concentric rings with curved spaces intervening therebetween, a centrally mounted rotary memberwith opposite flanges vreaching out so as to inclose said spaces and convert them into channels for the motive liuid,

of said rings and extended outwardly to coverv said line of spaces on both sides and adapt the same as channels for the motive fluid, and a plurality of spring-pressed impellers lodged in pockets in one part of said rotary member and projecting therefrom into said channels toward the other part of the rotary member, said impellers retreating in their said pockets while passing the breaks in the line of channels.

3. An engine comprising two concentric stationary rings, the outer ring standing on edge upon a suitable base and the inner ring being held within the other so as to leave a line of curved spaces therebetween, a centrally mounted rotary member with flanges extending therefrom outwardly to wall in and form tubular channels of the spaces between the two rings, a series of impellers carried by said rotary membercrosswise be-= tween its said flanges and projecting'successively into said channels, and supports arranged on both sides of the base and provided with bearings for the shaft of the rotary member.

4:. An engine comprising two stationary concentric rings with a plurality of curved spaces between them, a centrally-mounted rotary member with flanges extended out so as to cover both sides of said spaces and form channels of the same for the motive liuid, said channels having ports at both ends, impellers carried by the rotary member crosswise of its said flanges and adapted to travel either way from one channel to another, and piping to supply the motive fluid to and exhaust it from the channels in either direction.

5. An engine comprising two stationary concentric rings with spaces therebetween, a rotary member composed of two parts brought together from the opposite sides of and through the inner ring, and extended so as to inclose said spaces and form channels of the same for the motive fluid, a system of pipes connected with both ends of said channels and having branches adapting them to be used for feed or exhaust at option, and valves with ports alternately open to the several pipes and closed to their respective branches, and the reverse.

6. Arotary engine comprising two stationary concentric rings with spaces therebetween, a rotary member composed of two parts brought together from the opposite sides of and through the inner ring, and eX- Copies of this patent may be obtained for tended so as to inclose said spaces to form channels for the motive fluid, said rings being connected by opposed stationary abutments, and impellers movable horizontally and transversely in said rotary member, said impellers and said abutments having coacting inclined faces adapted to force said impellers transversely to permit them to pass said abutments during the rotation of the rotative member.

7. An engine y. comprising two stationary rings placed concentrically one within the other, intermediate abutments serving to Y hold said rings at a fixed distance apart, leaving spaces therebetween that are open on opposite sides, a rotary member mounted centrally across the rings provided with outwardly-turned flanges covering the open sides of said spaces so as to form channels for the passage of the motive fluid, and retreating impellers for said rotary member movable past said abutments.

8. An engine comprising two stationary rings held apart one within the other to produce intervening spaces that are yopen on opposite sides, segmental ribs projecting inwardly from the outer ring, and a rotary member in the inner ring with extensions reaching past both sides of the latter to said ribs so as to wall in said open spaces, said extensions forming thus with the rings a line of tubular channels inside the rotary member and its mounting.

9. A rotary engine having a quadrilateral passage for the motive iiuid bounded in one plane by two stationary walls located opposite each other, and transversely thereto by two movable walls likewise positioned on opposite sides of the passing fluid.

10. A rotary engine comprising a fixed mounting provided with transverse apertures near its perimeter, and a rotary member composed of two parts fitted in the mounting from opposite sides thereof, said parts extending over said apertures to form channels of the same for the motive fluid.

Signed at Philadelphia, in the county of Philadelphia and .State of Pennsylvania, this thirtieth dav of December A. D. 1907.

VALENTINE PERAzIo. [as] ve cents each, by addressing the Commissioner of IPatents,

Washington, D. C. 

